Electric lamp and discharge devices – Discharge devices having an electrode of particular material
Reexamination Certificate
2011-03-08
2011-03-08
Pert, Evan (Department: 2826)
Electric lamp and discharge devices
Discharge devices having an electrode of particular material
C313S34600R
Reexamination Certificate
active
07902734
ABSTRACT:
An electron emitting device2comprises an electron emitting portion6made of diamond. At an electron emission current value of 10 μA or more, a deviation of the electron emission current value over one hour is within ±20% in the electron emitting device2.The number of occurrence of step-like noise changing the electron emission current value stepwise is once or less per 10 minutes.
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Imai Takahiro
Nishibayashi Yoshiki
Tatsumi Natsuo
Yamamoto Yoshiyuki
McDermott Will & Emery LLP
Pert Evan
Sumitomo Electric Industries Ltd.
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